import java.util.Scanner;

public class Binary{
  
  public static void main(String[] args){
    
    Scanner scan = new Scanner(System.in);
    String input = "";
    
    // So long as the String input is NOT 1-60 in length,
    //    Ask the user to enter a valid binary number up to 60 digits
    //    Save the next line of user input to the variable "input"




    
    
    // If the input string is NOT binary, tell the user "Bad input!"
    // Otherwise, tell the user "You entered [numeric value of input]"




    
  }
  
  private static boolean isBinary(String input){
    // Go over each character of input
    //      If that single character is not '1' or'0', return false immediately
    // If you finish going through the characters, return true



  }
  
  private static long binaryValue(String input){
    // To start, the exponent is 0 and the next position in 
    // in the input string is the string length minus one.  
    // You will also need a long variable to hold your result.




    // While the exponent is smaller than the string length, 
    //     Get the character at the next position in the input string
    //        and store it in a char variable
    //     Subtract '0' (not 0) from that character and multiply 
    //         the result of that subtraction by (long) Math.pow(2, exponent)
    // When the loop is finished, return the long variable holding the result

    

  }
  
}
You will need to do the following things:
  1. Get a String of input from the user.
  2. Depending on whether the input is valid, announce the number's value; otherwise, let the user know it is bad input.
  3. Write a method to verify whether or not the user's input string is valid.
  4. Write a method to calculate the value of the user's input string.
Note that because of user input, the output will look different each time you run the program.

Program output examples:

Enter a valid binary number up to 60 digits long:
101010101010101
You entered 21845

Enter a valid binary number up to 60 digits long:
1101010001
You entered 849

Enter a valid binary number up to 60 digits long:
10101010130011
Bad input!
Questions:
  1. How did the process of creating these programs go for you?
  2. What were your main challenges and how did you overcome them?
  3. What did you learn that may be of use as you move along in this class?